2016 ASQ Award winners for Best Airport by Size: Over 40 Million PassengersPhoto: Screengrab2016 ASQ Award winners for Best Airport in Asia-PacificPhoto: Screengrab

Airports Council International said in a statement that the latest results are based on 600,000 individual surveys conducted in 84 countries. The survey sought passengers' views of 34 key performance indicators, including airport access, check-in, security screening, restrooms, stores and restaurants.